condition	mean	min	max
4 h after light	15.78425	14.9359	16.6326
8 h after light	13.7218	12.7345	14.7091
12 h after light	15.992450000000002	15.6091	16.3758
4 h after dark	19.7094	18.9884	20.4304
8 h after dark	23.89045	21.7932	25.9877
12 h after dark	23.77665	23.4233	24.13